Treadstone Associates
Case File · HR & Employment Diligence

A union certification the vendor never mentioned

Anonymised, illustrative composite. A buyer structured a deal as an asset purchase specifically to leave the target's workforce behind — and discovered, three weeks from closing, that one warehouse crew had been certified for eleven years.

Treadstone Associates · Updated 2026

At a glance

  • • A sponsor's platform agreed to buy a mid-sized distribution business by asset purchase, expecting a clean-slate workforce.
  • • The seller's disclosure schedule listed “no material labour matters” — but omitted that one of its three warehouses had been unionised since 2015.
  • • Successor-rights doctrine generally carries a certified union's bargaining rights and collective agreement forward to a buyer of the business, regardless of whether the deal is structured as an asset or share purchase.
  • • The buyer did not walk from the deal; it re-priced the purchase price and rebuilt its post-close labour-relations plan around a workforce it had not budgeted to inherit.

The situation

A sponsor's existing distribution platform agreed to acquire a mid-sized regional competitor, structured deliberately as an asset purchase rather than a share purchase. Part of the commercial logic for that structure, laid out in the buyer's own investment memo, was starting the combined workforce clean: new offer letters, standard benefits, no inherited employment liabilities. The seller's disclosure schedule stated there were “no material labour matters” affecting the business.

The problem

Three weeks from scheduled closing, a line item buried in a facilities lease exhibit referenced a “union access agreement” for one of the target's three warehouses. Follow-up diligence confirmed what the disclosure schedule had not: that warehouse's twenty-two employees had been certified and covered by a collective agreement since 2015, renewed twice since without incident, quietly enough that it had never surfaced in management interviews or the data room's HR folder. The buyer's assumption of a clean-slate workforce was wrong for roughly a third of the operation it was acquiring.

The numbers

The certified warehouse represented $6.1M of the target's $19.4M in annual revenue and 22 of its 71 total employees. The collective agreement had eighteen months remaining on its term, carrying wage scales roughly 9% above what the buyer had modelled for that facility post-close, plus grievance and seniority provisions the buyer's HR integration plan had not accounted for at all. The buyer's original model assumed full flexibility to restructure staffing across all three warehouses in year one; that flexibility did not exist at the certified location for the life of the agreement.

The rule that decided it

The doctrine that decided the outcome is called successor rights, and it is a general feature of Canadian labour relations law, not a workaround the asset-purchase structure could route around. The clearest sourced statement of the mechanism, in the federal regime, is Canada Labour Code s.44(2), marginal note Sale of business: on a sale, “a trade union that is the bargaining agent for the employees employed in the business continues to be their bargaining agent,” and “the person to whom the business is sold is bound by any collective agreement” in force on the sale date. Warehousing and distribution is provincially regulated work, though, so the provision that would actually decide this file is the target province’s own. In Ontario it is Labour Relations Act, 1995 s.69, headed “Sale of business”, whose s.69(2) makes the buyer “bound by the collective agreement as if the person had been a party thereto” and whose s.69(3) continues the union as bargaining agent for the employees of the buyer — in each case “until the Board otherwise declares”. In British Columbia it is s.35 of the Labour Relations Code, headed “Successor rights and obligations”, whose s.35(2) provides that a collective agreement in force “continues to bind the purchaser, lessee or transferee to the same extent as if it had been signed by” them. The specific wording differs by province, but the shape of the rule does not: a certification and its collective agreement travel with the business, and structuring a deal as an asset purchase does not, on its own, leave that behind. One qualification belongs in any diligence memo on this: successorship is not self-executing on the face of the statute. It is a question the labour board decides on the substance of the transaction — whether what the buyer is running is recognisably the same enterprise — and both provisions reserve that determination expressly to the Board (Ontario s.69(2)–(3); BC s.35(3)). That is a reason to price the risk, not a reason to assume the certification will fall away. This is exactly the kind of employment exposure a buyer's diligence checklist is meant to surface before signing, not after.

The outcome

The buyer did not walk. The certified warehouse was still a profitable, well-run facility, and unwinding the whole transaction over one undisclosed fact was disproportionate once the numbers were actually modelled. Instead, the buyer's counsel used the omission as leverage: the seller's disclosure schedule was demonstrably wrong on a matter that should have been listed, which supported a $650,000 purchase-price reduction and an extended indemnity survival period specific to labour and employment representations, built into the deal's indemnity cap as a carved-out item rather than the general basket. The buyer also rebuilt its year-one integration plan to treat the certified facility as a standalone unit through the remaining eighteen months of the collective agreement's term, rather than folding it into the combined operating model on the original schedule. For the same disclosure-schedule failure mode showing up on the workforce-classification side instead of the labour-relations side, see how misclassified contractors produced an almost identical undisclosed-liability pattern.

The tell

The signal to check for directly, rather than relying on a disclosure schedule to volunteer it, is any reference anywhere in the data room to a “collective agreement,” “bargaining unit,” “access agreement,” or a specific labour board file or certification number — these terms surface in leases, insurance schedules and grievance correspondence long before they surface in a seller's own labour representations. A buyer relying solely on management's verbal assurance that “we're not unionised” is relying on exactly the gap this deal fell into.

Takeaways

  • • Successor rights generally carry a certification and collective agreement to the buyer regardless of asset-vs-share deal structure.
  • • Every Canadian jurisdiction has an equivalent successor-rights provision; confirm the applicable one for the target's actual jurisdiction.
  • • A wrong disclosure-schedule statement on labour matters is real indemnity leverage even when the buyer still wants to close.
  • • Search the whole data room, not just the HR folder, for the terms that actually signal a union — leases and insurance schedules surface it first.

Sources

  • Ontario Labour Relations Act, 1995, s.69 — Sale of business — the on-point provision for a provincially regulated distribution business in Ontario. s.69(1) defines “sells” to include leases, transfers and any other manner of disposition; s.69(2), Successor employer, binds the buyer to the collective agreement “as if the person had been a party thereto…until the Board otherwise declares”; s.69(3) continues the union as bargaining agent on the same terms. This URL serves the full consolidated statutory text, not a guide.
  • Canada Labour Code, s.44 — the federal comparator quoted in the text. Note the section’s own marginal note is Definitions — the operative successor-rights rule is subsection 44(2), marginal note Sale of business, which is where both quoted phrases come from. It applies only to federal works, undertakings and businesses.
  • British Columbia Labour Relations Code, s.35 — Successor rights and obligations — s.35(1) binds a purchaser, lessee or transferee to all proceedings before the disposition; s.35(2) continues a collective agreement in force against them; s.35(3) gives the board the power to determine, on application, “what rights, privileges and duties have been acquired or are retained”.
  • Treadstone Law — Successor rights under the Ontario Labour Relations Act on a business sale — confirms an asset purchaser can become bound by an existing certification and collective agreement where the business “continues operating as substantially the same enterprise”, and that buying only some assets, hiring different employees or using a new corporate name does not defeat it. It names the Act but pins no section, which is why s.69 is pinned above.
  • Treadstone Law — Can a union force recognition even in an asset purchase? — the substance-over-form point in shorter form: successor-rights protections “exist specifically to prevent a buyer from using an asset structure to sidestep an existing union”, and whether they apply “depends on the substance of the transaction rather than its legal form”.
  • Treadstone Law — Employment due-diligence red flags on an Ontario business purchase — the diligence checklist linked in the text. Be clear about its limits: it covers misclassified contractors, missing written contracts and vacation tracking, but it says nothing at all about union certification or collective agreements — adjacent to this file’s finding, not on point for it. The union question has to be asked separately, which is the file’s own lesson.
  • No statute governs the $650,000 price reduction or the carved-out indemnity. A disclosure schedule cannot displace a statutory successorship rule; what the omission bought the buyer was contractual leverage, not a legal remedy.

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